scsi_dh: don't allow to detach device handlers at runtime

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The I/O submission and completion paths call into the device handler
without any synchronization agains detachment.  So disallow detaching
device handlers at runtime.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>

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Christoph Hellwig 2015-08-27 14:17:01 +02:00 • committed by James Bottomley

parent e959ed9a44

commit d442277495

1 changed files with 4 additions and 2 deletions

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drivers/scsi/scsi_dh.c

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